* [PATCH] nvme: warn of unhandled effects only once
@ 2021-03-17 20:33 Keith Busch
2021-03-18 1:04 ` Chaitanya Kulkarni
2021-03-18 5:18 ` Christoph Hellwig
0 siblings, 2 replies; 3+ messages in thread
From: Keith Busch @ 2021-03-17 20:33 UTC (permalink / raw)
To: linux-nvme, hch, sagi; +Cc: Keith Busch
We don't need to repeatedly spam the kernel logs with the same warning
about unhandled passthrough IO effects. Just one warning is sufficient
to observe this condition occurs.
Signed-off-by: Keith Busch <kbusch@kernel.org>
---
drivers/nvme/host/core.c | 6 +++---
1 file changed, 3 insertions(+), 3 deletions(-)
diff --git a/drivers/nvme/host/core.c b/drivers/nvme/host/core.c
index bfc868d6bda9..bb15882c0fd1 100644
--- a/drivers/nvme/host/core.c
+++ b/drivers/nvme/host/core.c
@@ -1072,9 +1072,9 @@ u32 nvme_command_effects(struct nvme_ctrl *ctrl, struct nvme_ns *ns, u8 opcode)
if (ns->head->effects)
effects = le32_to_cpu(ns->head->effects->iocs[opcode]);
if (effects & ~(NVME_CMD_EFFECTS_CSUPP | NVME_CMD_EFFECTS_LBCC))
- dev_warn(ctrl->device,
- "IO command:%02x has unhandled effects:%08x\n",
- opcode, effects);
+ dev_warn_once(ctrl->device,
+ "IO command:%02x has unhandled effects:%08x\n",
+ opcode, effects);
return 0;
}
--
2.25.4
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2021-03-17 20:33 [PATCH] nvme: warn of unhandled effects only once Keith Busch
2021-03-18 1:04 ` Chaitanya Kulkarni
2021-03-18 5:18 ` Christoph Hellwig
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